Motor-vehicle surface sander



Sept. 18, 1928.

A. W. REED MOTOR VEHICLE SURFACE SANDER ,jwmnto'o JZWRe ed.

2 Sheets-Sheet Filed Sept. 18, 1924 Sept. 18, 1928. 1,684,806

, A. w. REED MOTOR VEHICLE SURFACE SANDER Filed Sept. 18, 1924 2 Sheets-Sheet 2 positive tractive action between the drive Patented Sept. 18, 1928.

UNITED STATES.

PATENT OFFICE.

.A dEtTH'U'IR W. REED, OF BOSTON, MASSACHUSETTS, ASSIGNOR O33 ONE-HALF TO WAL- TEE B. BANNER, OF BOSTON, MASSAUHUSETTS.

MOTOR-VEHICLE SURFACE SANDER.

Application filed September 18, 1924. Serial No. 735,470.

The object of this invention is to enable the drive wheels of a motor vehicle to obtain a positive grip upon a slippery surface, thereby preventing skidding and insuring a wheels and the surface of the road.

The invention provides an equipment including a container for sand or like abrasive material, means for supplying air under pressure to the container to efi'ect a positive discharge of the sand therefrom, a delivery spout and a valve associated with said spout for controlling the discharge of the sand therethrough, said valve being under control of the driver.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

lNhile the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the nature of the invention.

Referring to the accompanying drawings forming a part of the specification,

Fi ure 1 is a detail view showing the application of the invention to an automobile,

Figure 2 is a detail view. of the sand container and valved spout associated therewith, parts of the container being broken away,

Figure 3 is a top plan view of the parts illustrated in Figure 2,

Figure 4: is a diagrammatic view of the motor circuit, r

Figure 5 is a the instrument board rovided with the air gauge and motor circuit switch, and,

Flgure 6 is a detail view of a valve control.

Corresponding and like arts are referred to in the following descrlption and designated in the several views of the drawings by like reference characters,

The automobile illustrated in Figure 1 is typical of the type of motor driven'vehicles for which the invention is designed, the same being shown to illustrate the application ofthe invention. The numeral 10 denotes a container which is of the form of a box for holding a quantity of sand or like detail view of a portion of abrasive material, and this container may be of any construction'and capacity and located upon the vehicle in the most advantageous position. A spout 11 extends from the corn tainer 10 and its delivery end is arranged to discharge sand upon the surface in advance of the driving wheel 12 of the vehicle, where by to prevent slipping when negotiating a slippery surface. A valve 13 in the length of the spout 11 controls the discharge of the fan, and is normally held closed by means of a spring 14 and is adapted to be opened by means of a connection 15 which may be attached to a pedal 16 or a pull 17 within convenient reach of the driver, so that sand may be supplied to a slippery surface when operating the pedal 16 or by pulling upon the part 17.

The numeral 18 denotes an electric motor and 19 an air compressor adapted to be operated by means of the motor 18, a pipe 20 con necting the air compressor with the box or container 10, to supply air thereto under pressure. A check valve 21 is located in the length of the air pipe 20 to prevent loss of pressure when the air compressor is at rest. A gauge 22 disposed upon the instrument board or in any other preferred locationis connected by means of a pipe 23 with the sand box or container 10, so that the driver may ascertain at a glance the pressure of the air within the container 10. A screen 24 arranged over the end of the pipe 23connected said pipe and impairing the action of the gauge 22. A switch 24 mounted upon the instrument board is included in the circuit 25 containing the motor 18 and when the switch 24 is closed current is supplied to the motor 18 whereby the air compressor 19 is operated to supply the box or container 10 with air under pressure.

In the operation of the invention, sand may be supplied to a wet or slippery surface to prevent slipping and enable the drive wheels of a motor vehicle to obtain a positive grip and the sand is discharged either upon operating the pedal 16 or by pulling upon the part 17.

As indicated most clearly in Figure 1, a box 26 or like receptacle may be located beneath a seat of the vehicle and receive a quantity of sand which may be supplied to to the box 10 prevents sand from entering while seated, an air compressor in communication with the box, and a motor independent of the motor of the vehicle to operate said air compressor and a control means for the motor accessible to the vehicle. driver while seated.

In testimony whereof I aflix my signature.

ARTHUR W. REED. 

